© Copyright 1995 thru 2008 - The Mustang Works™. All Rights Reserved.
MustangWorks.com is designed and hosted by Aero3 Media.
MustangWorks.com is designed and hosted by Aero3 Media.
04-18-2001, 06:09 PM | #1 |
Registered Member
Join Date: Jan 2001
Location: Bakersville,N.C. USA
Posts: 10
|
T-rex & 255 intank
GraesyCarl,I have the T-rex to go inline and I also have a 255lph intank pump. Sufficient or overkill? Which is better,T-rex&255 or T-rex & stock?
|
04-18-2001, 11:20 PM | #2 |
Registered Member
Join Date: Apr 2001
Posts: 13
|
What kind of power are you going to make?
In general it is hard to put too large of a fuel pump in a car, except for some of the race pumps that really pump a lot. A T-rex and the stock in-tank is good for about 425 or so from what I have seen...maybe a little more but those factory 87 to 93 pumps vary quite a bit so if in doubt change that baby! A 255 in-tank and T-rex can get you up to about 550 at the rear wheels, which is the point where the factory fuel rails really start to become a factor. Your engine could also be a factor as well, how much fuel it requires (efficiency) can affect this. No matter what you do, if you decide to shoot for big power with those pumps make sure they get plenty of voltage and watch your factory fuel pump relay, a 255 will draw a lot of juice and the factory relay can get hot and shut off especially if it is a few years old. ------------------ 91 coupe, SVO block 380 windsor, Brodix Neal heads, Super victor spyder intake, 90mm Accufab, 160 lb. Bosch injectors, D2-R procharger, Dynamic powerglide, 4500 stall, 9" rear, Speed Pro injection. 1047 hp at the wheels on Dynojet dyno with 23 lbs. of boost. |
04-19-2001, 10:43 AM | #3 |
Registered Member
Join Date: Mar 1999
Location: Arcadia, CA, USA
Posts: 731
|
Good combo! (see sig.)
------------------ Russ L '91 LX Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles. |
04-19-2001, 11:28 AM | #4 |
Dirk Diggler
Join Date: Feb 1999
Location: SLOATSBURG, NY
Posts: 1,931
|
unless u allready have a 255 intake now then i suggest a 190 with a t-rex..a 190 pump is the recremended pump for the use with external pumps
------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one.. AIM=onesillynotch |
04-19-2001, 11:43 AM | #5 |
or '331 LX Eric'
Join Date: Jan 1999
Location: Columbus, Ohio
Posts: 2,142
|
LX XLR8 - why a 190 instead of the 255? Less draw on the electrical stuff?
Thanks, E ------------------ 1991 5.0 LX Coupe - 38,000 miles 13.17 @ 106.14 mph w/ 2.138 60' |
04-20-2001, 10:40 AM | #6 |
Dirk Diggler
Join Date: Feb 1999
Location: SLOATSBURG, NY
Posts: 1,931
|
if i had to guess id say that it had to do with GPM and PSI of the fuel..i cant see a 255 taking that muchmore power..i know that in i belive it was the steeda catolog they say next to either the vortech external or the 190 pump they say that they are recremened 2gether when using a external pump..
|
04-22-2001, 07:44 PM | #7 |
Registered Member
Join Date: Aug 1999
Location: London, Ontario, Canada
Posts: 10
|
when you guys are using the Trex pump and the 255 lph intank pump, are these hocked up so the intank feeds the trex or are they working in parallel. Just curious as to why you don't just use the intank pump at 255 as if I recall the trex is only a 225lph pump.
Straighten me up on this please |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
intank or inline fuel pump? | zepherman | Windsor Power | 9 | 08-10-2002 04:28 PM |